Isotopically Labeled Compounds
Cambridge Isotope Laboratories cis-1 2 3 6-Tetrahydrophthalimide (ring-3 3 4 5 6 6- D6 98%) 0 1 g
cis-1 2 3 6-Tetrahydrophthalimide (ring-3 3 4 5 6 6- D6 98%) 0 1 g
Apexbio Technology LLC Nortriptyline (hydrochloride) 894-71-3 50mg
Nortriptyline hydrochloride (CAS 894-71-3) is a dibenzocycloheptene-derived tricyclic antidepressant that inhibits monoamine reuptake transporters It selectively blocks the norepinephrine transporter (NET) with a Ki of 3 4 nM and inhibits the serotonin transporter (SERT) with a Ki of 161 nM thereby increasing synaptic concentrations of these neurotransmitters in the central nervous system In vitro nortriptyline dose-dependently suppresses spontaneous migration and chemotaxis of human polymorphonuclear cells In vivo studies in rodents indicate partial blockade of noradrenaline depletion in nerve terminals at higher doses Nortriptyline is frequently employed in research on monoaminergic neurotransmission and antidepressant pharmacology
Medchemexpress LLC Cabozantinib-d4 | 1802168-53-1 | 99.0% | 505.53 g/mol | C28H20D4FN3O5 | 5 MG
Cabozantinib-d4 is the deuterium-labeled (d4) form of cabozantinib used as a stable-isotope internal standard for quantitative LC-MS and bioanalytical assays. It is supplied as a high-purity solid suitable for method development, calibration, and pharmacokinetic studies.
- Deuterium-labeled internal standard for LC-MS analysis.
- High purity suitable for quantitative assays.
- Supplied in small-mass quantities for analytical workflows.
- Molecular formula C28H20D4FN3O5 and molecular weight 505.53 g/mol.
- Intended for research use and analytical method development.
Medchemexpress LLC D-erythro-sphingosine (C20 sphingosine) | 6918-49-6 | MFCD08703032 | 99.0% | 327.55 g·mol⁻¹ | C20H41NO2 | 5 MG
C20-Sphingosine is a long-chain sphingoid base (D-erythro-sphingosine, C20) used in studies of neural development and sphingolipid biology. Supplied as a high-purity solid for in vitro research, it is suitable for experiments investigating lipid signaling, metabolism, and cellular development.
- Long-chain sphingoid base used to study neural development and sphingolipid biology.
- High purity (≥99.0%).
- Molecular formula C20H41NO2; molecular weight 327.55 g·mol⁻¹.
- Supplied as a solid, suitable for dissolution in common organic solvents.
- Recommended storage: powder at -20°C; in solvent store at -80°C (short term) or -20°C.
- Intended for research use only; not for clinical or therapeutic use.
Cambridge Isotope Laboratories CDC PCB Calibration Solution (CS7) 0 5 mL
CDC PCB Calibration Solution (CS7) 0 5 mL
Cambridge Isotope Laboratories Monobenzyl phthalate (unlabeled) 100 ug/mL in MTBE 1 2 mL
Monobenzyl phthalate (unlabeled) 100 ug/mL in MTBE 1 2 mL
Cambridge Isotope Laboratories Dimethoate (O O-dimethyl-D6 98%) 100 ug/mL in acetonitrile 1 2 mL
Dimethoate (O O-dimethyl-D6 98%) 100 ug/mL in acetonitrile 1 2 mL
Cambridge Isotope Laboratories Desisopropylatrazine (unlabeled) 100 ug/mL in acetonitrile 1 2 mL
Desisopropylatrazine (unlabeled) 100 ug/mL in acetonitrile 1 2 mL
Cambridge Isotope Laboratories Modified JIS PCB Sampling Spike (13C12 99%) 1 2 mL
Modified JIS PCB Sampling Spike (13C12 99%) 1 2 mL
Cambridge Isotope Laboratories PCB Calibration Solution (CS2) 200 uL
PCB Calibration Solution (CS2) 200 uL
Cambridge Isotope Laboratories CDC PCB Calibration Solution (CS3) 0 5 mL
CDC PCB Calibration Solution (CS3) 0 5 mL
Medchemexpress LLC Pimozide-d4-1 | 00-00-0 | 465.57 g/mol | C28H25D4F2N3O | 5 MG
Pimozide-d4-1 is a deuterium-labeled isotopologue of pimozide supplied for research and analytical applications. The product is offered as a 5 mg quantity and is accompanied by a product data sheet and handling instructions for laboratory use.
- Isotopically labeled (d4) for use as a mass-shifted internal standard.
- Intended for research and analytical use.
- Provided as a 5 mg powder.
- Molecular formula C28H25D4F2N3O; molecular weight 465.57 g/mol.
- Data sheet and handling instructions available for purity and handling information.
Medchemexpress LLC Acetylcholine-d4 (bromide) | 93449-31-1 | 98.0% | 10 MG
Acetylcholine-d4 (bromide) is the deuterium-labeled analogue of acetylcholine bromide supplied for research and analytical use. It serves as an isotopically labeled tracer and internal standard for quantitative assays and is provided as a high-purity solid suitable for spectroscopic and mass-spectrometric workflows.
- isotopically labeled internal standard for quantitative analysis
- compatible with NMR, GC-MS, and LC-MS workflows
- high chemical purity (98.0%) for reliable quantitation
- solid, white to off-white appearance for ease of handling
- stable when stored sealed and protected from moisture; in solvent: -80°C (up to 6 months) or -20°C (up to 1 month)
- intended for research use only